The Chargers also added depth to their defensive line Sunday via trade.

General manager Tom Telesco completed the first for-player trade of his tenure, acquiring Cowboys defensive lineman Sean Lissemore. The compensation is a conditional 2015 seventh-round pick, a source said, that will be given if Lissemore appears on the 46-man game-day roster a certain number of times.

Defensive end Damik Scafe (foot) was placed on injured reserve in a corresponding move.

Lissemore is listed at 6-foot-3, 314 pounds. The 2010 seventh-round pick has appeared in 28 games, including six starts in 2012, with 66 career tackles and 3.5 sacks. He has versatility, considered capable of playing all three line spots in a 3-4 scheme.

The Cowboys switched this offseason to a 4-3 defense.

Telesco's first trade was moving up in the second round last April to take Manti Te'o.